Cutter for mowing-machines.



UNITED STATES PATENT OFFICE.

\VILLIAM I-I. RUEF, OF POUGHKEEPSIE, NEW YORK, ASSIGNOR TO THE ADRIANOE,PLATT & COMPANY, OF SAME PLACE.

CUTTER FOR MOWlNG-MACHINES.

SPECIFICATION forming part of Letters Patent No. 646,562,. dated April3, 1900.

Application filed August 14,1899. Eerial No. 727,190. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM H. RUEF, a citizen of the United States,residing at Poughkeepsie, in the county of Dutchess and State of NewYork, have invented new and useful Improvements in Cutters forMowing-Machines, &c., of which the following is a specification.

This invention relates to the triangular knife-sections which areemployed in mowing and harvesting machines and which are secured side byside upon a reciprocating cutter or scythe bar.

The object of this invention is to secure these knife-sections to theirsupporting-bar by simple, inexpensive, and reliable means.

In the accompanying drawings, Figure 1 is a plan view of twoknife-sections secured side by side to the cutter-bar and provided withcurved interlocking extensions and recesses. Fig. 2 is a longitudinalvertical section in line 2 2, Fig. 1. Fig. 3 is a plan View showing theknife-sections provided with angular interlocking extensions andrecesses.

Like letters of reference refer to like parts in the several figures. g

A represents the knife-sections, having in their general outline theusual triangular form, bounded by the forwardly-converging beveledcutting edges (1, square abutting faces co, and the base or butt I).

O is the usual cutter or scythe bar, upon which the sections A arearranged side by side and to which they are secured. The sections abutagainst each other between their beveled cutting edges and the butt-endsby the square abutting faces a, which stand at right angles to the baseb. Each section is provided at one side, over the cutter-bar and nearthe middle of its square abutting face ct, with a laterally-projectingextension 61 and at the opposite side, in its square abutting face, witha recess 6 of like form, so that the extension (1 of one section fitsinto the recess 6 of the adjacent section. These extensions and re=cesses may be of various forms. For instance,

in Fig. 1 these parts are shown of substantially-semicircular form,while in Fig. 3 the extension 03 and the recess e are shown of angularor pointed form. Each section is provided in its lateral extension witha hole f,

' through which a rivet g or a screw passes into the cutter-bar. Thisrivet-hole is arranged in line with the square abutting faces a, at thejunction of the two sections. The rivet passing through this extensionsecures the latter firmly to the cutter-bar, and as the extensioninterlocks With the adjacent section by entering the recess thereof andthe sections bear against each other with their square abutting facesthis rivet also serves to steady the'contiguous portion of the adjacentsection, thus securely holding the interlocked portions of the twosections on the cutter-bar and preventing any displacement of thesections with reference to each other. Each section is further securedto the cutter-bar by one or more additional rivets or screws, thedrawing showing one additional rivet h passing through a hole '5 in eachsection.

I claim as my invention 1. The combination with the cutter-bar, ofknife-sections, each provided near its base with square abutting facesand having at one side an extension which projects laterally from one ofsaid abutting faces andwhich is provided with a perforation for a rivetor screw arranged in line with said abutting face and having in theabutting face on the opposite side a recess of like form which receivesthe extension of the adjacent section, and fastening devices which passthrough the perforations of the extensions of the sections and securethe same to the cutter-bar at the j unction of adjacent sections,substantially as set forth.

2. A knife-section provided near its base with square abutting faces andhaving at one side an extension which projects laterally from one ofsaid abutting faces and which is provided with a perforation for a rivetor screw arranged in line with said abutting face and having in theabutting face on the opposite side a recess of like form, substantiallyas set forth.

Witness my hand this 8th day of August, 1899.

WILLIAM H. RUEF.

Witnesses:

TUNIS AOKERMAN, ELMER E. EASTMEAD.

